Induction meter



April 15 1924. 1,490,384

P. GUSTAVUS INDUCTION METER Filed April 24. 1922 Inventor: PauiGustavus,

l-HsALtor-ne Patented Apr. 15, 1924. I 7 I UNETE$ SIATES @FFEQE.

PAUL GU$TAVUS, OF BERLIN, GERMANY, ASSIGNOR TO GENERAL ELECTRIC COM-PANY, A CORPORATION OF NEW YORK.

INDUCTION METER.

Application filed. April 24, 1922. Serial No. 556,321.

To ail whom it may concern. substantially toward the axis of the disk,Be it known that I, PAUL Gosravos, a the plate a being designed toprovide the citizen of Germany, residing at Berlin, in subsidiary torqueand being bent away from the State of Prussia, Germany, have inventtheradial position, and the plate I; being in t ed certain new and usefulImprovements in position for cooperating with a flap c of InductionMeters; and I do hereby declare magnetic material on the meter shaft toprethe following to be a full, clear, and exact vent the operation ofthe meter under no description of the invention, such as will enload bypressure. able others skilled in the art to which it While in describingthe invention refer- 10 appertains to make and use the same. once hasbeen made to an example in which My invention relates to electric metersof the members a and b are spaced apart, I the induction type and morein particular to wish it to be understood that my invention simple,convenient and inexpensive devices is not limited to this feature. forcompensating for the friction load and I claim:

16 for preventing the operation of such meters 1. In an electric meterof the induction at no load. 7 The object of the improvements type, apotential magnet, a meter disc coisto provide 3 meter of this type inwhich operating therewith, a shaft for rotatably two projecting membersof magnetic masupporting said disc, an arm of magnetic terial areprovided one beside the other on material on said shaft, and a pair ofad- 20 the magnetic core, each performing one of justable magneticmembers secured in fixedthe said functions. One of the said mempositionson said potential magnet adjacent hers is adapted to be bent laterallyto regusaid disc, one of said members being in alate the subsidiarytorque, while the other position to produce a subsidiary torque on oneis set in position for providing a subsaid disc for supplying thefriction losses of 25 sidiary pole and preventing the operation saidmeter and the other of said members of the meteinby the potential coilof the inbeing in a position to cooperate with said strument under noload. This construction arm to prevent the rotation of th disc at no ispreferable as compared to a construction load. in which the said membersare disposed one 2. In an electric meter of the induction to above theother for the reason that for each type, a potential magnet, a meterdisc tof the members the whole breadth between operating therewith, ashaft for rotatably the meter disk andthe body of the coil is supportingsaid disc, an arm of magnetic made use of. material on said shaft and apair of mag- F or the purpose f explaining the invennetie membersrigidly secured to said po- 85 tion an example embodying the same hastential magnet adjacent said disc, one of been shown in the accompanyingdrawing said members being adjustable to compenin which the samereference characters have sate for the frictional losses of said meterbeen used in all the views to indicate correand the other memherbeingadjustable with spending parts. In said drawing,- respect to saidmagnetic arm for preventing to Fig. 1, is an elevation of the pressurecore rotation of the meter disc at no load, said and the diskcooperating therewith, and adjustment being made by bending said Fig. 2,is a partial plan view of Fig. 1. members in such directions that oneadjust- In the example shown in the drawing the ment does not aifect theother. pressure core S is disposed radially of the In testimony whereofI hereunto allix my 45 disk A, and two sheet metal plates at and bsignature.

of magnetic material project each from one side of the upper pole of thecore S and PAUL GUSTAVUS.

